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.106. COMPOSITIONS,

COATING 0R PLASTIC.

ress Reference y *Ulyirno STATES PATENT OFFICE;

HENRY A. COOKE, or OCALA, FLORIDA.

COMPOUND FORMAKING BRICKSI,VD ARTIFICIAL STONE, 8w.

'SPEC IPICJATION forming part of Letters Patent No. 303,213, dated August 5, 1884-. I Application filed March 26, 1884. (No specimens.) v

To all whom it may concern:

Be it knownthat I, HENRY A. Cooxn, o Ocala, in the county of Marion, and in the State of Florida, have invented certain new,

' and useful Improvements in Compounds for Making Bricks, Artificial Stone, 820.; andI do hereby declare that the followingis a full,

uclear, and exact description thereof.

My invention relates to compounds for making brick or artificial stone; and the object I have in viewis to make bricks in localities, more particularly, where suitable clay cannot be obtained readily.

To enable others to make brick according to my invention, I .will proceed to give the ingredients which I use and the mode of compounding them.

- 1 I first take one barrel of unslaked lime which I place in a suitable bed. "B 5511- tfiis I pour snfiicient Water to cover it, or make a milk of lime. To t 1s add four (4) pounds of pulverized rosin which is thoroughly dissolved and incorporated by the heat of the'lime.

When the lime is slaked, I add thirty (30) pounds of idc of iron (or, as an equivalent, asimilarquan 1 yo eveland-ore paint,)and

then six or seven barrels oi:

pr, san according to quality. These ingre ients, 21. ter being thoroughly mixed, are allowed to stand for about twenty-four hours. jAfter standing, I add one-half (5) barrel of Portland or other suitable cement and oneour of a barrel of gypsumE which have previously been mixed. e on ire mass is then placed in a suitable machine, and by any of the wellknown means thoroughly-mixed and incory mig porated, sufficient water, if ne'cessaryfibeing added to form a heavy thick mortar. mortar is then either pressed into molds by power or molded by hand. ater-is sometimes used in the drying process, to keep the ing of slaked liln, rosin, silica or sand, oxide of iron, gypsum, and cement, properly mixed, in the proportions substantial] y as and for the purpose set forth.

' 2. The herein-described method of making bricks, consisting in, first, slaking a sufficient quantity of lime, during which operation a quantity of pulverized rosin is added, the heat melting and thoroughly mixing it; then is added oxide of iron and silica or sand; then, after standing a time, is added to the compound a mixture of cement and gypsum, the entire mass then being thoroughly mixed and molded and allowed to dry slowly, substantially as and for the purpose specified.

. In testimony whereof I aflix my signature in presence of two witnesses.

V HENRY A. COOKE. \Vitnessesf' u.

LOUIS Fox,

J. ISRAEL.

This 

